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What method will you use to remove both temporary and permanent hardness of water?
Permanent hardness of water can be a removed by the following ways:
(a) By the use of soda:
Soda removes both temporary and permanent hardness. It is also inexpensive and easy to use. This makes it the ideal substance for softening water in the home.
(b) Other softening agents in the home:
It is difficult for the housewife to be very precise in the use of soda and the water softened by soda may often contain an excess of it, which even if it is slight, may damage certain fabrics. Hence, other softening agents could be used. They are:
(i) Soap:
Soap is used as a softening agent. However, the use of soap as a softening agent is extravagant on account of its high cost compared with soda.
(ii) Caustic soda:
It removes temporary hardness but reduces permanent hardness only when the lather is very slight.
(iii) Solution of Ammonia:
It may be used for softening water, when the fabrics to be treated would be harmed by soda. If used in excess, ammonia may destroy the Iustre of rayon's, discolour and injure animal fabrics and loosen the dyes of coloured articles. Since, it is not possible to be very certain of the quantity to be used; this is not practicable for softening water.
(iv) Borax:
It is useful for softening water containing over 20% of hardness. Borax is usually used to reduce the alkalinity of soap solution rather than to soften water.
(c) Removal of Permanent Hardness by the Base-Exchange Process:
Base exchange process' is a chemical method by which, softening of permanent hardness in water can be done on a large scale or for household purposes. It is the most popular and effective means of softening hard water. It was discovered by Dr. Robert Gans, who found out the natural minerals called 'Zeolites', which is very effective in softening water.
The Base-Exchange Process includes the following procedures:
The water passes through specially prepared zeolite- a sodium compound, called base-exchange compound. it is has the property of being able to exchange its sodium base for another. When hard water passes through the zeolite, the hardening compounds of calcium and magnesium are caught up by the zeolite and become compounds of sodium. Since sodium salts in water do not precipitate out on heating or form soap curds the water is called 'soft'.
When a given quantity of water, determined by the size of the appliance, has been softened, the zeolite becomes depleted; having parted with all its sodium, but this can be remedied, as the substance has the property of being able to exchange its base again and to take back sodium in place of calcium and magnesium. This process is called 'regeneration'.Zeolite water softeners made for domestic use are either connected with the men water-supply or fixed on to a water tap.
What else can I help you with?
What is permanent hardness of water?
Temporary Hardness Temporary hardness is hardness that can be removed by boiling or by the addition of lime (calcium hydroxide). It is caused by a combination of calcium ions and bicarbonate ions in the water. By boiling the water, it promotes the formation of carbonate from the bicarbonate and will precipitate calcium carbonate (the limescale) out of solution, leaving water that is less hard after it has cooled. When it has been heated, less carbon dioxide is able to dissolve into the water. Since there is not enough carbon dioxide around, the reaction cannot take place, and therefore the calcium carbonate will not "dissolve" as readily. Instead, the reaction is forced to re-establish equilibrium, and the solid calcium carbonate is formed. Heating water will remove hardness as long as the limescale that precipitates out is removed. After cooling, if enough time passes the water will pick up carbon dioxide from the air and the reaction will again proceed, allowing the calcium carbonate to "redissolve" in the water. Permanent Hardness Permanent hardness is hardness (mineral content) that cannot be removed by boiling. When this is the case, it is usually caused by the presence of calcium and magnesium sulphates and/or chlorides in the water, which become more soluble as the temperature rises. Despite the name, the hardness of the water can be easily removed using a water softener, or ion exchange column.
Does RO remove water hardness?
Yes, reverse osmosis (RO) can effectively remove water hardness minerals such as calcium and magnesium from water. The semi-permeable membrane in an RO system is capable of filtering out impurities, including minerals that cause water hardness, resulting in smoother and softer water.
Hardness of a material that scratches the knife blade?
The hardness of a material that scratches a knife blade would typically be higher than the hardness of the knife blade itself. This implies that the material is able to physically deform or remove material from the knife blade due to its greater hardness. This property is commonly assessed using the Mohs scale of mineral hardness.
Is it possible to remove hardness of water by electrolysis?
No, electrolysis does not remove hardness from water. Hardness in water is caused by dissolved minerals such as calcium and magnesium. Electrolysis involves the decomposition of water into its constituent elements, hydrogen and oxygen, and does not address the presence of mineral ions that cause water hardness. Physical methods such as ion exchange or chemical methods like adding a water softener are more effective for removing hardness from water.
Will wateralcoholvinegar or detergent solution will remove permanent marker ink?
yes it can
What method remove both temporary and permanent hardness of water?
Boiling method
How do you remove the hardness of water?
Boiling water is simple process as it remove all temporary hardness.Permanent hardness need specific filters.
How do you remove hardness of water?
Boiling water is simple process as it remove all temporary hardness.Permanent hardness need specific filters.
What is the difference between temp hard water and permanent hard water?
here two type of hardness 1-temporery 2-permanent *temporery hardness-it is also known as carbonate hardness and alkiliny hardness.it is unstable hardness.it is remove by boiling.it is the due presence of carbonate.
What is permanent hardness of water?
Temporary Hardness Temporary hardness is hardness that can be removed by boiling or by the addition of lime (calcium hydroxide). It is caused by a combination of calcium ions and bicarbonate ions in the water. By boiling the water, it promotes the formation of carbonate from the bicarbonate and will precipitate calcium carbonate (the limescale) out of solution, leaving water that is less hard after it has cooled. When it has been heated, less carbon dioxide is able to dissolve into the water. Since there is not enough carbon dioxide around, the reaction cannot take place, and therefore the calcium carbonate will not "dissolve" as readily. Instead, the reaction is forced to re-establish equilibrium, and the solid calcium carbonate is formed. Heating water will remove hardness as long as the limescale that precipitates out is removed. After cooling, if enough time passes the water will pick up carbon dioxide from the air and the reaction will again proceed, allowing the calcium carbonate to "redissolve" in the water. Permanent Hardness Permanent hardness is hardness (mineral content) that cannot be removed by boiling. When this is the case, it is usually caused by the presence of calcium and magnesium sulphates and/or chlorides in the water, which become more soluble as the temperature rises. Despite the name, the hardness of the water can be easily removed using a water softener, or ion exchange column.
Can sandpaper remove a tattoo?
Sandpaper will remove a temporary tattoo, however this will be extremely painful. Sandpaper will not remove a permanent tattoo. To remove a temporary tattoo, it is more effective (and less painful) to use Acetone or Nail-Polish remover.
How do you get rid of water hardness?
Salt is sometimes used to remove water hardness. Borax and soda are generally used as well to remove water hardness.
What are the methods used to remove permanent hardness of water?
The common methods used to remove permanent hardness of water are ion exchange, lime-soda treatment, and distillation. Ion exchange involves passing hard water through resin beads that exchange calcium and magnesium ions with sodium ions. Lime-soda treatment involves adding lime (calcium hydroxide) and soda ash (sodium carbonate) to precipitate out the calcium and magnesium ions. Distillation involves boiling water to separate it from the minerals causing hardness.
What do you mean by hardness of water. how is it classified. mention the disadvantages of using hard water for various purposes?
Hardness of water refers to the concentration of dissolved minerals, particularly calcium and magnesium ions. It is classified as temporary hardness, which can be removed by boiling, and permanent hardness, which requires water softening methods to remove. The disadvantages of using hard water include scale buildup in pipes and appliances, reduced efficiency of soaps and detergents, and potential skin irritation.
Synthetic resins method forremoval of permanent hardness ofwater?
A method for blowing synthetic resins as a fuel into a furnace comprising: processing synthetic resins consisting essentially of film shaped synthetic resins by melting or semi-melting the synthetic resins by heat to produce granular synthetic resins having a bulk density of at least 0.3 and angle of repose of up to 40 degrees; pneumatically feeding the granular synthetic resins from the processing; and blowing the pneumatically fed granular synthetic resins into a furnac
Where can you get a temporary tattoo of a death bat?
You cannot get a temporary death bat tattoo anywhere. However, you can get a permanent tattoo, as most tattoo artists can give you one. You can now remove your death bat tattoo once you're done with it.
How do you remove permanent hardness of water?
The permanent hardness of water is caused by dissolved doubly or triply charged metal cations, which must be removed to remove the permanent hardness. Distillation is a traditional method for removing these and all other ions, but a more economical solution under most circumstances is contacting the water with an ion exchange medium that can replace the doubly or triply charged cations with singly charged cations such as those of sodium and/or potassium. The reason this works is that most doubly or triply charged cations form precipitates with the anionic portion of soaps or anionic detergents, but singly charged cations form more soluble salts that do not precipitate.
